scope:

This standard is used in conjunction with the following other standards and standards listed in Paragraph 2.3:

Note: In the event of a conflict between the requirements of this general standard and one of the following specific standards, the requirements of the speci fic standard shall take precedence.

The following standards are applicable to electrical equipment for Class I, II, or III, Division 1 or 2 hazardous (classified) locations.

• FM Approvals Examination Standard 3610;

• FM Approvals Examination Standard 3611;

• FM Approvals Examination Standard 3613;

• FM Approvals Examination Standard 3615;

• FM Approvals Examination Standard 3616;

• FM Approvals Examination Standard 3650;

• FM Approvals Examination Standard 3620;

• FM Approvals Examination Standard 6320; and

• FM Approvals Examination Standard 7320.

The following standards are applicable to electrical equipment for Zone 0; Zone 1; Zone 2; Zone 20; Zone 21; or Zone 22 hazardous (classified) locations.

• ANSI/UL 60079-0;

• ANSI/UL 60079-1;

• ANSI/UL 60079-2;

• ANSI/UL 60079-5;

• ANSI/UL 60079-6;

• ANSI/UL 60079-7;

• ANSI/UL 60079-11;

• ANSI/UL 60079-13

• ANSI/UL 60079-15;

• ANSI/UL 60079-18;

• ANSI/UL 60079-25:

• ANSI/UL 60079-26;

• ANSI/UL 60079-28;

• ANSI/UL 60079-30-1;

• ANSI/UL 60079-31;

• ANSI/UL 60079-33;

• ANSI/UL 80079-36; and

• ANSI/UL 80079-37.

Application

This standard shall apply to:

a) Electrical equipment or parts of electrical equipment rated for use in Hazardous (Classified) Locations as defined by the National Electrical Code^® (NEC^®), ANSI/NFPA 70;

b) Associated equipment located outside of the hazardous (classified) location whose design and construction may influence those parts of the equipment within the hazardous (classified) location.

Purpose

This standard states testing and certification requirements for electrical equipment for use in hazardous (classified) locations.

Testing and certification criteria may include, but are not limited to, performance requirements, marking requirements, examination of manufacturing facility(ies), audit of quality assurance procedures, and a surveillance program.